Stability criterion for attractive Bose-Einstein condensates
نویسندگان
چکیده
منابع مشابه
Stability criterion for attractive Bose-Einstein condensates
Experimental observation of Bose-Einstein condensation ~BEC! in ultracold atomic clouds @1# has stimulated a new direction in the study of macroscopic quantum phenomena. Basically, the interaction between two confined bosons in a condensate is determined by the s-wave scattering length a and it can be either repulsive (a.0) or attractive (a,0). Although first BEC experiments were commonly reali...
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Using a standing light wave potential, a stable quasi-one-dimensional attractive dilute-gas Bose-Einstein condensate can be realized. In a mean-field approximation, this phenomenon is modeled by the cubic nonlinear Schrödinger equation with attractive nonlinearity and an elliptic function potential of which a standing light wave is a special case. New families of stationary solutions are presen...
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C. Huepe, L. S. Tuckerman, S. Métens, and M. E. Brachet Department of Engineering Sciences and Applied Mathematics, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, USA Laboratoire d’Informatique pour la Mécanique et les Sciences de l’Ingénieur, Boîte Postale 133, 91403 Orsay, France Laboratoire de Physique Théorique de la Matière Condensée, Université Paris VII, Paris, Fr...
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C. Huepe,1 S. Métens,1 G. Dewel,2 P. Borckmans,2 and M. E. Brachet1 1Laboratoire de Physique Statistique de l’Ecole Normale Supérieure, associé au CNRS et aux Universités Paris 6 et 7, 24 Rue Lhomond, 75231 Paris Cedex 05, France 2Service de Chimie-Physique and Center for Nonlinear Phenomena and Complex Systems, CP 231, Université Libre de Bruxelles, 1050 Bruxelles, Belgium (Received 17 August ...
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The self-similar collapse of 3D and quasi-2D atom condensates with negative scattering length is examined. 3D condensates are shown to blow up following the scenario of weak collapse: The inner core of the condensate diverges with an almost zero particle number, while its tail distribution spreads out to large distances with a constant density profile. For this case, the 3-body recombination ar...
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ژورنال
عنوان ژورنال: Physical Review A
سال: 2000
ISSN: 1050-2947,1094-1622
DOI: 10.1103/physreva.62.023607